Results 1 to 10 of about 275 (82)
MachinesThis paper proposes a five-blade rotor swing scraper pump (FRSSP) to overcome traditional volumetric pumps’ drawbacks, such as poor sealing performance, low volumetric efficiency, and complex structure.
Chong Wang +4 more
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Calculation and Analysis of Shipboard Helicopter Aero-elastic Response Using CFD Method on Ship-deck
Hangkong gongcheng jinzhan, 2022 The shipboard helicopter is in a harsh environment,which can cause the accidents of rotor tip over-swing and body collision.The research on the aero-elastic response on the ship surface of the helicopter can prevent such accidents.The computational fluid
ZHANG Ran +3 more
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Nihon Kikai Gakkai ronbunshu, 2023 Using a high-speed multistage scale model compressor simulating a middle stage of a gas turbine compressor for power generation, the effects of 3 types of rotor tip clearances on performance and operating range, and the vortex structure of rotor tip ...
Ryosuke SEKI
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Trudy Odesskogo Politehničeskogo Universiteta, 2013 Engineering development requires the creation and use of new high-performance rotary elastic supports for solving not only the problem of shaft-type object orientation around the elements of body and the problem of reduce the friction between them but ...
Геннадій Олександрович Оборський +2 more
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Machines, 2022 Against the backdrop of the rapid burgeoning of international energy engineering, the efficient utilization of energy is a paramount factor. The key idea in this paper is to propose an elliptical rotor scraper pump (ERSP) in order to address the ...
Zhen Zhang +6 more
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Numerical Simulation of Helicopter Blade Bullet Penetration in Maneuvering State
Hangkong gongcheng jinzhan, 2019 The study on the impact damage of helicopter rotor blade under maneuvering condition is of important significance. Based on the rotor blade of a certain type of machine, a numerical simulation method of projectile attack on the rotor blade under the ...
Lin Changliang, Zhu Yuefa, Hu Wengang
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Steering Principle of Compound Swing Cylinder for Rotary Vane Steering Gear
工程科学与技术, 2021 Rotary vane steering gear has the advantages of compact structure, high mechanical efficiency, and easy installation, and is widely used in ships. The existing rotary vane steering gear is a single-layer hydraulic swing cylinder, and the rotation range ...
Geqiang LI +4 more
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Nantong Daxue xuebao. Ziran kexue banThe processing of the blade tip of heavy-duty gas turbine rotating blades is a key procedure in blade shaping. The accuracy of this process determines the gap between the blade tip and other components, which may affect the working efficiency of the gas ...
CHENG Lifeng; XIE Fan; HONG Liangliang; ZHANG Haijun
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Zhongguo Jianchuan YanjiuObjectiveUnsteady forces generated by pump-jet rotors are a key factor affecting the vibration and noise levels of underwater vehicles. These forces not only induce structural vibrations through coupling between the propeller, shafting, and hull systems,
Wanghao TANG, Junjie XU, Xiuchang HUANG
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Numerical study of the influence of quadrotor blade parameters on aerodynamic noise generation
Авіаційно-космічна техніка та технологіяThe aim of this paper is to study the effect of variation of the parameters of a small-sized quadrotor blade on the level of aerodynamic noise and its frequency spectrum.
Petro Lukianov, Oleg Dusheba
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